'non-comparability' originates from English, specifically the combination of the prefix 'non-' and the word 'comparability', where 'non-' meant 'not' and 'comparability' derives from Latin 'comparabilis' (from 'comparare') meaning 'able to be compared'.

'non-comparability' developed in modern English by attaching the negative prefix 'non-' to 'comparability'. 'Comparability' traces back through Middle English and Old French to Latin 'comparabilis', from the verb 'comparare' meaning 'to compare'.

Initially built from elements meaning 'not' + 'able to be compared', the term's core sense — 'the quality of not being comparable' — has remained stable in modern usage.